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CONTENTS

PAGE

1. IMPORTANT NOTES .........................................................................................................................2

1.1. INSTALLATION NOTES ........................................................................................................2

1.2. SERVICE NOTES .................................................................................................................2

1.3. PLUMBING NOTES ..............................................................................................................2

2. SPECIFICATION ................................................................................................................................4

3. INTRODUCTION ................................................................................................................................5

3.1. DIMENSIONS AND CONNECTION POINTS (M20) .............................................................6

3.2. DIMENSIONS AND CONNECTION POINTS (M26) .............................................................7

3.3. SAFETY GUIDELINES..........................................................................................................8

3.4. GENERAL GUIDELINES.......................................................................................................8

4. INSTALLATION ..................................................................................................................................9

4.1. CONFIRM THE APPLIANCE SUITABILITY .........................................................................9

4.2. SELECTING A SUITABLE LOCATION FOR INSTALLATION ...............................................10

4.3. CLEARANCES FOR OUTDOOR HEATER LOCATIONS ....................................................11

4.4. GAS CONNECTION..............................................................................................................12

4.5. SIZING AND CONNECTION SUITABILITY ..........................................................................12

4.6. MEASURING INLET GAS PRESSURE AND TESTING GAS LEAKAGE.............................13

4.7. WATER CONNECTIONS ......................................................................................................14

4.8. ELECTRICAL CONNECTIONS.............................................................................................14

5. REMOTE CONTROLLER ..................................................................................................................15

5.1. REMOTE CONTROLLER INSTALLATION ...........................................................................16

5.2. CONNECTION OF REMOTE CONTROLLER WIRING TO THE WATER HEATER .............17

6. INITIAL OPERATION .........................................................................................................................18

7. NORMAL OPERATION......................................................................................................................19

7.1. NORMAL OPERATION WITHOUT REMOTE CONTROLLER..............................................19

7.2. NORMAL OPERATION WITH MULTIPLE REMOTE CONTROLLERS INSTALLED ............19

7.3. FREEZE PREVENTION........................................................................................................19

8. MAINTENANCE AND SERVICE........................................................................................................21

8.1. UNIT DRAINING AND FILTER CLEANING...........................................................................21

8.2. GENERAL TROUBLESHOOTING ........................................................................................22

8.3. PCB ERROR CODES ...........................................................................................................24

8.4. WIRING DIAGRAM ...............................................................................................................26

8.5. SIDE DIVERTER...................................................................................................................27

8.6. WATER FLOW AND WATER TEMPERATURE (M20) ..........................................................30

8.7. WATER FLOW AND WATER TEMPERATURE (M26) ..........................................................30

9. WARRANTY CONDITIONS..............................................................................................................31

Midea M26 User Manual

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